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Boat Forum / Building / March 2007



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fastener cutting

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MarshallE - 20 Mar 2007 01:48 GMT
Are there tools for cutting old fasteners (5/16" dia bronze) from the
inside of hulls?  If so, please advise what I can use to cut flush to
the inside of the planking.  I am adding new frames before hauling to
through fasten with new.  My boat has a fiberglass skin and I do not
want to break the skin anymore than needed.

I have been using side cutting disks on a 4" grinder.  It works...but
is slow and messy.

It would be great to find a shorter electric or pneumatic hand held to
do the cutting.

thanks for help
marshall
Bill - 20 Mar 2007 15:00 GMT
dremel tool with cut-off wheel = small hand held electric.
or if rivets, use drill to remove head and tap/pull out.

> Are there tools for cutting old fasteners (5/16" dia bronze) from the
> inside of hulls?  If so, please advise what I can use to cut flush to
[quoted text clipped - 10 lines]
> thanks for help
> marshall
Jim Conlin - 20 Mar 2007 16:57 GMT
If what you're needing is to cut flush against the planking and throu the existing fasteners, I think that a Fein Multiimaster with a flush-cut blade will do the job easliy and well.  It's a very high quality tool, with price to match.

> Are there tools for cutting old fasteners (5/16" dia bronze) from the
> inside of hulls?  If so, please advise what I can use to cut flush to
[quoted text clipped - 10 lines]
> thanks for help
> marshall
tim124c41@yahoo.com - 20 Mar 2007 18:21 GMT
> Are there tools for cutting old fasteners (5/16" dia bronze) from the
> inside of hulls?

A reciprocating saw (e.g., Sawzall) with a long blade.  The blade will
bend to cut flush with the surface.  Something like 10 to 14 teeth per
inch and 8 to 12 inches long.

Good luck,

Tim
Joe Bleau - 21 Mar 2007 15:52 GMT
I second Jim Conlin's suggestion of the use of a Fein Multimaster.  He
is right, they are expensive but once you own a Multimaster you will
continually discover things it can do that no other tool can
accomplish.  If you try to cut with a long blade in a sawzall you are
going to damage the surrounding material.  On the Fein you will have
to install a metal cutting blade.

Joe
 
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